JPS5555653A - Running system of electronic exchange system - Google Patents

Running system of electronic exchange system

Info

Publication number
JPS5555653A
JPS5555653A JP12933978A JP12933978A JPS5555653A JP S5555653 A JPS5555653 A JP S5555653A JP 12933978 A JP12933978 A JP 12933978A JP 12933978 A JP12933978 A JP 12933978A JP S5555653 A JPS5555653 A JP S5555653A
Authority
JP
Japan
Prior art keywords
sby
act
main memory
memory unit
gate switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12933978A
Other languages
Japanese (ja)
Inventor
Hiroshi Saito
Michimitsu Hattori
Masakatsu Sakai
Kazuo Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP12933978A priority Critical patent/JPS5555653A/en
Publication of JPS5555653A publication Critical patent/JPS5555653A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
    • H04Q3/54541—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme using multi-processor systems
    • H04Q3/54558—Redundancy, stand-by

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Hardware Redundancy (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To quicken the restart processing in case of failure taken place, by providing the bidirectional gate switch on the connection line between the ACT system processor and SYB(standby) system main memory unit and between SBY processor and ACT system main memory unit. CONSTITUTION:The address bus 131 at ACT system side and the address bus 231 at SBY system are linked with the gate switch 51 and the data bus 132 at ACT system and the data bus 232 at SBY system side are by the gate switch 61. Further, the normal exchange processing is made by the central processing unit CC11 of ACT system and the main memory unit MM12, and the call data save for failure is made with the main memory unit MM22 of SBY system by CC11 periodically. The switches 51 and 61 are bidirectional gate switches, which interrupt the connection between ACT system CC11 and SBY system MM12 and between SBY system MM12 and ABY system CC21, but normally they are closed.
JP12933978A 1978-10-20 1978-10-20 Running system of electronic exchange system Pending JPS5555653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12933978A JPS5555653A (en) 1978-10-20 1978-10-20 Running system of electronic exchange system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12933978A JPS5555653A (en) 1978-10-20 1978-10-20 Running system of electronic exchange system

Publications (1)

Publication Number Publication Date
JPS5555653A true JPS5555653A (en) 1980-04-23

Family

ID=15007152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12933978A Pending JPS5555653A (en) 1978-10-20 1978-10-20 Running system of electronic exchange system

Country Status (1)

Country Link
JP (1) JPS5555653A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS601995A (en) * 1983-06-17 1985-01-08 Hitachi Ltd Control system of microprocessor
JPS6257030A (en) * 1985-09-06 1987-03-12 Hitachi Ltd History information managing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS601995A (en) * 1983-06-17 1985-01-08 Hitachi Ltd Control system of microprocessor
JPH0534877B2 (en) * 1983-06-17 1993-05-25 Hitachi Ltd
JPS6257030A (en) * 1985-09-06 1987-03-12 Hitachi Ltd History information managing system

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